Spiral towel bar



FIG. 1 is a top view of my new design for a spiral towel bar;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a a rear view thereof;

FIG. 5 is left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a spiral towel bar, as shown and described. 